Update main.yml

Author: Beakerboy

.github/workflows/main.yml

@@ -26,6 +26,6 @@ jobs:
         cd ../OSMBuilding
         yarn --prod=false
     - name: Test
-      run: NODE_OPTIONS="$NODE_OPTIONS --experimental-vm-modules" npm test
+      run: CI=true NODE_OPTIONS="$NODE_OPTIONS --experimental-vm-modules" timeout 20s npm test
     - name: Coveralls
       uses: coverallsapp/github-action@v2